Rotary pump.



O. E. CLEMENT & J. H. WAGNER.

ROTARY PUMP.

Patented Feb.15,1910.

3 SHEETS-SHEET 1.

0. E. CLEMENT & J. H. WAGNER.

ROTARY PUMP.

APPLIOATION FILED JUNE 17, 1909.

Patented Feb. 15, 1910.

3 SHEETS-811E111 2.

WA/MW 4 W 0. E. CLE T H. WAGNER.

BBBBBBBBBBBBBB OTTO E. CLEMENT AND JOHN H. WAGNER, OF

ST. LOUIS, MISSOURI.

ROTARY PUMP.

Specification of Letters Patent.

Patented Feb. 15, 1910.

Application filed June 17, 1909. Serial No. 502,836.

To all whom it may concern:

Be it known that we, OTTOE. CLEMENT and JOHN H. \Vncnnn, citizens of theUnited States, and residents of St. Louis, Missouri, have inventedcertain new and useful Improvements in ltotary Pumps, of which thefollowing is a specification.

This invention relates to improvements in rotary pumps and has for itsobject to provide a revolving member axially mounted and provided with aplurality of sliding flukes so arranged as to operate in a passage forcreating a suction and discharging the liquid under pressure on the sameside and above the suction inlet.

A further object of my invention is the construction of a revolvingmember having a central opening of sufficient size through which theflukes may be removed and inserted in their proper position in the guideslots without dismantling the entire mechanism.

In the drawings-Figure 1 is a vertical central sectional view of mycomplete invention. Fig. 2 is a detail perspective view of the emergencyguide made use of in connection with my invention. Fig. 3 is a centralcross-sectional view with one of the pulleys shown in solid togetherwith the end cap. Fig. 1 is a detail perspective view of one of thefiukes. Figs. 5, 6, 7 and 8 are diagrammatic views showing the severalpositions of the flukes relative to the operation of the revolvingmember.

In the construction of my invention as shown, I provide a suitable base9 which has mounted thereon a circular rim 10, said rim provided with anintegral projection 11 provided with an opening 12 which acts as anoutlet for the discharge of the liquid. The said rim is also providedwith a projecting flange 13 which is provided with a square opening 1 1and in said opening is inserted a plug 15 having an opening 16 which iscurved downwardly and opening into the interior of the rim. This openingacts as the suction end of the pump and to the same is attached anysuitable pipe connection through which the liquid is passed and admittedinto the pump.

On the sides of the rim 10 is attached cylinder heads 17 and 18, theupper edge of said heads provided with a pro ecting flange 19 which fitsover the edge of the vrim and between the rim and the heads is provideda suitable strip of packing material 20 so as to rovide an absolutelyleak-proof joint. ach of the heads 17 and 18 is provided with a centralboss 21 in which is formed a central opening 22 and acts as a bearingfor the sleeves 23 formed on both sides of the revolving member 2i. Therevolving member 24 is provided with flanges 25 which contact. with theinner surface of the rim 10 and between said flanges is formed a channel26 which acts as a passage 27 between the inner surface of the rim andthe periphery 28 of the core of the revolving member, through which theliquid is permitted to travel dur ing the operation of the pump. Theouter edge of each of the flanges 25 is grooved as indicated by thenumeral 29 and in the same is placed a strip of packing material 30which contacts with the packing material 20 formed between the rim andthe cylinder heads. The inner surface of the heads is channeled asindicated by the numeral 31 so as to form a space between the heads andthe flanges 25, and communicating from one side to the other through thecore 24i of the revolving member are openings 32 through which air isadmitted to pass from one side to the other for the purpose of equalizing the air pressure on both sides of the revolving member andpreventing the same from binding during the revolution.

In the core 24 is provided guide slots 33 in which operate flukcs 34.These fiukes are held parallel with the slots by means of their edgesoperating in grooves 35 formed in the walls oi the flanges 25. Thegrooves and guide slots are constructed slightly wider than the flukesso as to permit free action to the same so that said flukes may freelyoperate therein and be prevented from binding while the revolving memberis in operation. The sleeves 23 and core, all of which being formedintegral, have a central opening 36 of a diameter slightly larger thanthe length of the flukes. The object of this is to permit the flukcs 84:to be inserted in their proper position in the guide slots 33 from theopening 36. On the sleeve 23 are located pulleys 37 by which the pump isdriven, and the ends of said sleeve are closed by means of theinternally screw-threaded caps 38, each of said caps provided with thehexagonal head 39 so that said caps can be removed and replaced by meansof a wrench. In said opening 36 and throughout the tain the fluke in anextended position, the

instance has fallen toward the center and out len 'th of the same isplaced a roller 40 covcred with a strip of flexible material, and saidroller is of a diameter smaller than the opening, a portion of which isclearl shown in Fig. l, and the object of this rol er is to hold theflukes in their position within the guide slots 33, yet preventing theclosin of more than one of the slots at any time. he plug 15 extendsinwardly and has a rounded surface or contacting edge 41 which closelycontacts with the periphery of the core 24 and on the top of the same isplaced an emergency guide 42 which has a pair of upwardly projectingwalls 43, the points 44 of the same placed in small notches formed inthe inner surface of the rim and in that manner held in position asshown in Fig. 1. The object of this emergency guide is that in the eventany foreign substance should clog between the fluke and the walls of theguide slots and resame by contacting with thewalls 43 will force thesame inwardly so that the said fluke can pass the plug 15.

The action of the flukes in the slots is by gravity and is described asfollows: By referring to Figs. 5, 6, 7 and 8, the various positions ofthe flukes are shown and when the flukes are in the position as shown inFig. 5, the fluke A is in a position to create a suction and cause theliquid to follow through the inlet pipe into the passage 27. At thisposition the fluke B is ready to be relieved of its pressing contactagainst the inner surface of the rim and the liquid between the flukes Aand B is pressed forward by fluke A. Fluke 0 having performed itsfunction, has by gravity fallen into the slot and has its bottom edgeresting on the roller. Fig. 6 shows fluke A farther advanced, the flukeB b gravity sliding toward the center and the duke C remaining incontact with the roller and all of the liquid between the fluke A andthe plug 15 is beingdriven forward and out through the discharge outlet.In Fig. 7 fluke A has about finished its suction and fluke O is ready topass outward into a position as shown by fluke A in Fig. 5 so as toresume suction upon the suction inlet. The fluke B in this of operation,the liquid in the passage between fluke A and the plug is passing outthrough the discharge opening. In Fig. 8 I show the roller 40 removedand one of the flukes in the position ready to be removed from theopening 36. The object of this is that in the event any of the flukesbecome I worn or out of service, by the removal of the caps 38 theroller 40 can be withdrawn and the flukes removed without removing anyother portion of the pump and in this i manner rapid and ready accesscan be had to the interior and operating sections of the pump. I v 1Having thus fully described my invention, what I claim as new and desireto have secured to me by the grant of Letters Patent, is:

1. A rotary pump comprising a rim; a pair of cylinder heads; a revolvingmember located between the cylinder heads and the rim; sleeves formedintegral with the revolving member and having bearing in the cylinderheads; a plurality of guide grooves formed in the revolving member andflukes located therein; the revolving member and sleeves provided with acentral opening of a size sulficient to remove and replace the flukes,and ca s located on the sleeves for closing the en s of the same,substantially as described. a

2. A rotary pump comprising a revolving member provided with aperipheral channel and a central horizontal openlng; projecting sleevesformed integral with the revolving member; a pair of cylinder heads andthe rim forming a housing for the revolving member and in which the sameis permitted to operate; a plurality of flukes operating in slots formedin the revolving member and permitted to be removed and replaced throughthe horizontal opening in the ref volving member, and a roller locatedin the central opening to prevent the flukes from becoming unseated,substantially as specified.

3. A rotary ump comprising a rim mounted upon a ase; an inlet .and anoutlet formed in said rim; a pair of cylinder heads located on each sideof the rim; a revolving member located between the cylinder heads andhaving bearing therein; the revolving member having a peripheral channelwhich forms a passage between the rim and the revolving member throughwhich the liquid travels; a plug provided with an inlet opening locatedin the rim and contacting with the revolving member; a plurality offlukes operating in guide grooves formed in the revolving member; aroller located in the central opening to prevent the flukes frombecoming unseated during the travel; and caps for closing the'ends ofthe central opening, substantialy as specified.

4. A'rotary pump comprising a housing; a revolving member; a pluralityof flukes operating 1n guide slots formed in the revolving member and aformed in the revolving member of a size sufficient to remove andreplace the flukes without disconnecting the pump, substantially asspecified.

5. A rotary pump comprising a: housing supported on a base; a revolvingmember located within said housing, said revolving member provided witha peripheral channel which forms a passage between the housing and therevolving member; a plurality of flukes operating in guide slots formedin the revolving member, said revolving memcentral opening her providedwith a central openin through names to this specification, in presenceof which the flukes can be removed and retwo subscrlblng wltnesses.

placed from the center of the pump; and a OTTO E. CLEMENT.

roller for retaining the same in position JOHN H. WAGNER. 5 when placedin their proper slots, substan- Witnesses:

tially as specified. L. A. L. MOINTYRE,

In testimony whereof, we have signed our l WALTER C. STEIN.

